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CR series rope drill pipe
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CR series rope drill pipe
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CR series rope drill pipe standards and parameters | ||||||
NO. | Standard | Description Code | Outer diameter (mm) | Inner diameter (mm) | Weight (Kg) | Drilling depth (m) |
1 | BCRTK | RC-BCRTK-1500 RC-BCRTK-3000 | 55.8 | 48.4 | 7.1 14.1 | 1500 |
2 | NCR | RC-NCR-3000 | 70.5 | 60.3 | 24.2 | 1800 |
3 | HCR | RC-HCR-3000 | 89.0 | 77.8 | 34.6 | 1800 |
CR series rope drill pipe performance parameters | |||||
NO. | Standard | Tensile force≥(kN) | Top-up torque (N · m) | Maximum torque (N · m) | Drill pipe water capacity (L./m) |
1 | BCRTK | 330 | 450 | 1800 | 1.8 |
2 | NCR | 430 | 720 | 3600 | 2.9 |
3 | HCR | 560 | 1100 | 4300 | 4.8 |
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